<template>
  <view>
    <view class="search-box">
      <my-search @click="gotoSearch"></my-search>
    </view>
    <view>
      <!-- 轮播图区域 -->
      <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
        <!-- 循环渲染轮播图的 item 项 -->
        <swiper-item v-for="(item,i) in swiperList" :key="i">
          <navigator class="swiper-item" :url="'/subpkg/goods_detail/goods_detail?goods_id='+item.goods_id">
            <img :src="item.image_src" />
          </navigator>
        </swiper-item>
      </swiper>
    </view>
    <!-- 分类导航区域 -->
    <view class="nav-list">
      <view class="nav-item" v-for="(item,i) in navList" :key="i">
        <image :src="item.image_src" class="nav-img" @click="navClickHandler(item)" />
      </view>
    </view>
    <!-- 楼层区域 -->
    <view class="floor-list">
      <!-- 楼层 item 项 -->
      <view class="floor-item" v-for="(item,i) in flootList" :key="i">
        <!-- 楼层标题 -->
        <image :src="item.floor_title.image_src" class="floor-title"></image>
        <!-- 楼层图片区域 -->
        <view class="floor-img-box">
          <!-- 左侧大图片的盒子 -->
          <navigator class="left-img-box" :url="item.product_list[0].url">
            <image :src="item.product_list[0].image_src" :style="{width:item.product_list[0].image_width + 'rpx'}"
              mode="widthFix"></image>
          </navigator>
          <!-- 右侧 4 个小图片的盒子 -->
          <view class="rigth-img-box">
            <navigator class="rigth-img-item" v-for="(item2,i2) in item.product_list" :key="i2" v-if="i2 !== 0"
              :url="item2.url">
              <image :src="item2.image_src" mode="widthFix" :style="{width:item2.image_width + 'rpx'}"></image>
            </navigator>
          </view>
        </view>
      </view>
    </view>
  </view>
</template>

<script>
  // 导入自己封装的 mixin 模块
  import badgeMix from '@/mixins/tabbar-badge.js'
  export default {
    // 将 badgeMix 混入到当前的页面中进行使用
    mixins: [badgeMix],
    data() {
      return {
        // 1. 轮播图的数据列表，默认为空数组
        swiperList: [],
        navList: [],
        flootList: [],
        i: 0
      };
    },

    onLoad() {
      // 1. 轮播图的数据列表，默认为空数组
      this.getSwiperList()
      this.getNavList()
      this.getFlootList()
    },
    methods: {
      // nav-item 项被点击时候的事件处理函数
      navClickHandler(item) {
        // 判断点击的是哪个 nav
        if (item.name === '分类') {
          uni.switchTab({
            url: '/pages/cate/cate'
          });
        }
      },
      async getSwiperList() {
        const {
          data: res
        } = await uni.$http.get('/api/public/v1/home/swiperdata')
        if (res.meta.status != 200) return uni.$showMsg()

        this.swiperList = res.message
      },
      async getNavList() {
        const {
          data: res
        } = await uni.$http.get('/api/public/v1/home/catitems')
        if (res.meta.status != 200) return uni.$showMsg()
        this.navList = res.message
      },
      async getFlootList() {
        const {
          data: res
        } = await uni.$http.get('/api/public/v1/home/floordata')
        if (res.meta.status != 200) return uni.$showMsg()
        res.message.forEach(floor => {
          floor.product_list.forEach(prod => {
            prod.id = this.i + 1
            this.i = this.i + 1
            prod.url = "/subpkg/goods_list/goods_list?" + prod.navigator_url.split('?')[1] + "&id=" + prod.id

            prod.id = this.i + 1
            this.i = this.i + 1
          })
        })
        this.flootList = res.message
      },
      gotoSearch() {
        uni.navigateTo({
          url: '/subpkg/search/search'
        })
      }
    }
  }
</script>

<style lang="scss">
  swiper {
    height: 330rpx;

    .swiper-item,
    image {
      height: 100%;
      width: 100%;
    }
  }

  .nav-list {
    display: flex;
    justify-content: space-around;
    margin: 15rpx 0;

    .nav-img {
      height: 140rpx;
      width: 128rpx;
    }
  }

  .floor-title {
    height: 60rpx;
    width: 100%;
    display: flex;
  }

  .rigth-img-box {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
  }

  .floor-img-box {
    display: flex;
    padding-left: 10rpx;
  }

  // search吸顶效果
  .search-box {
    // 设置定位效果为“吸顶”
    position: sticky;
    // 吸顶的“位置”
    top: 0;
    // 提高层级，防止被轮播图覆盖
    z-index: 999;
  }
</style>